From f748e11645a3361f94d6fb10ce59febbaa5ba8ca Mon Sep 17 00:00:00 2001 From: Elie Roux Date: Sat, 18 Feb 2017 19:54:33 +0100 Subject: [PATCH] bootstraping structure --- src/Makefile.sources | 1 + src/hb-ot-base-table.hh | 238 ++++++++++++++++++++++++++++++++++++ src/hb-ot-font.cc | 1 + src/hb-ot-layout-private.hh | 2 + 4 files changed, 242 insertions(+) create mode 100644 src/hb-ot-base-table.hh diff --git a/src/Makefile.sources b/src/Makefile.sources index 6363cf930..20ce77b80 100644 --- a/src/Makefile.sources +++ b/src/Makefile.sources @@ -68,6 +68,7 @@ HB_NODIST_headers = \ HB_FALLBACK_sources = hb-fallback-shape.cc HB_OT_sources = \ + hb-ot-base-table.hh \ hb-ot-font.cc \ hb-ot-layout.cc \ hb-ot-layout-common-private.hh \ diff --git a/src/hb-ot-base-table.hh b/src/hb-ot-base-table.hh new file mode 100644 index 000000000..8ad01fe32 --- /dev/null +++ b/src/hb-ot-base-table.hh @@ -0,0 +1,238 @@ +/* + * Copyright © 2016 Elie Roux + * + * This is part of HarfBuzz, a text shaping library. + * + * Permission is hereby granted, without written agreement and without + * license or royalty fees, to use, copy, modify, and distribute this + * software and its documentation for any purpose, provided that the + * above copyright notice and the following two paragraphs appear in + * all copies of this software. + * + * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR + * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES + * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN + * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + * + * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, + * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS + * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO + * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. + * + */ + +#ifndef HB_OT_BASE_TABLE_HH +#define HB_OT_BASE_TABLE_HH + +#include "hb-open-type-private.hh" +#include "hb-ot-layout-common-private.hh" + +#define HB_OT_TAG_BASE HB_TAG('B','A','S','E') + +// https://www.microsoft.com/typography/otspec/baselinetags.htm + +#define HB_OT_TAG_BASE_HANG HB_TAG('h','a','n','g') +#define HB_OT_TAG_BASE_ICFB HB_TAG('i','c','f','b') +#define HB_OT_TAG_BASE_ICFT HB_TAG('i','c','f','t') +#define HB_OT_TAG_BASE_IDEO HB_TAG('i','d','e','o') +#define HB_OT_TAG_BASE_IDTB HB_TAG('i','d','t','b') +#define HB_OT_TAG_BASE_MATH HB_TAG('m','a','t','h') +#define HB_OT_TAG_BASE_ROMN HB_TAG('r','o','m','n') + +namespace OT { + +/* + * BASE -- The BASE Table + */ + +struct BaseCoordFormat1 { + protected: + USHORT baseCoordFormat; + SHORT coordinate; + + public: + DEFINE_SIZE_STATIC (4); +}; + +struct BaseCoordFormat2 { + protected: + USHORT baseCoordFormat; + SHORT coordinate; + USHORT referenceGlyph; + USHORT baseCoordPoint; + + public: + DEFINE_SIZE_STATIC (8); +}; + +struct BaseCoordFormat3 { + protected: + USHORT baseCoordFormat; + SHORT coordinate; + OffsetTo deviceTable; + + public: + DEFINE_SIZE_STATIC (6); +}; + +struct BaseCoord { + protected: + union { + USHORT baseCoordFormat; + BaseCoordFormat1 format1; + BaseCoordFormat2 format2; + BaseCoordFormat3 format3; + } u; + + public: + DEFINE_SIZE_MIN (4); +}; + +struct FeatMinMaxRecord { + protected: + Tag featureTableTag; + OffsetTo minCoord; + OffsetTo maxCoord; + + public: + DEFINE_SIZE_STATIC (8); + +}; + +struct MinMaxTable { + protected: + OffsetTo minCoord; + OffsetTo maxCoord; + USHORT featMinMaxCount; + ArrayOf featMinMaxRecordTable; + + public: + DEFINE_SIZE_ARRAY (6, featMinMaxRecordTable); + +}; + +struct BaseLangSysRecord { + protected: + Tag baseLangSysTag; + OffsetTo minMax; + + public: + DEFINE_SIZE_STATIC (6); + +}; + +struct BaseValuesTable { + protected: + USHORT defaultIndex; + USHORT baseCoordCount; + ArrayOf baseCoordTable; + + public: + DEFINE_SIZE_ARRAY (4, baseCoordTable); + +}; + +struct BaseScriptTable { + protected: + OffsetTo baseValues; + OffsetTo defaultMinMax; + USHORT baseLangSysCount; + ArrayOf baseLangSysRecordTable; + + public: + DEFINE_SIZE_ARRAY (6, baseLangSysRecordTable); +}; + + +struct BaseScriptRecord { + + protected: + Tag baseScriptTag; + OffsetTo baseScript; + + public: + DEFINE_SIZE_STATIC (4); +}; + +struct BaseScriptList { + + protected: + USHORT baseScriptCount; + ArrayOf baseScriptRecordTable; + + public: + DEFINE_SIZE_ARRAY (2, baseScriptRecordTable); + +}; + +struct BaselineTag { + + protected: + Tag tag; + + public: + DEFINE_SIZE_STATIC (4); + +}; + +struct BaseTagList +{ + + protected: + USHORT baseTagCount; + ArrayOf BaseTagListTable; + + public: + DEFINE_SIZE_STATIC (4); +}; + +struct VertAxis +{ + + protected: + OffsetTo baseTagList; + OffsetTo baseScriptList; + + public: + DEFINE_SIZE_STATIC (4); +}; + +struct HorizAxis +{ + + protected: + OffsetTo baseTagList; + OffsetTo baseScriptList; + + public: + DEFINE_SIZE_STATIC (4); +}; + +struct BASE +{ + static const hb_tag_t tableTag = HB_OT_TAG_BASE; + + inline bool sanitize (hb_sanitize_context_t *c) const + { + TRACE_SANITIZE (this); + return_trace (version.sanitize (c) && + likely (version.major == 1)); + } + + protected: + FixedVersion<>version; /* Version of the BASE table: 1.0 or 1.1 */ + OffsetTo horizAxis; + OffsetTo vertAxis; + //LOffsetTo itemVarStore; + + public: + DEFINE_SIZE_MIN (6); +}; + + +} /* namespace OT */ + + +#endif /* HB_OT_BASE_TABLE_HH */ diff --git a/src/hb-ot-font.cc b/src/hb-ot-font.cc index 009db20ae..9abdc6757 100644 --- a/src/hb-ot-font.cc +++ b/src/hb-ot-font.cc @@ -30,6 +30,7 @@ #include "hb-font-private.hh" +#include "hb-ot-base-table.hh" #include "hb-ot-cmap-table.hh" #include "hb-ot-cbdt-table.hh" #include "hb-ot-glyf-table.hh" diff --git a/src/hb-ot-layout-private.hh b/src/hb-ot-layout-private.hh index 071a439d6..ee8e1373e 100644 --- a/src/hb-ot-layout-private.hh +++ b/src/hb-ot-layout-private.hh @@ -122,6 +122,7 @@ hb_ot_layout_position_finish_offsets (hb_font_t *font, */ namespace OT { + struct BASE; struct GDEF; struct GSUB; struct GPOS; @@ -162,6 +163,7 @@ struct hb_ot_layout_t const struct OT::GPOS *gpos; /* TODO Move the following out of this struct. */ + OT::hb_lazy_table_loader_t base; OT::hb_lazy_table_loader_t math; OT::hb_lazy_table_loader_t fvar; OT::hb_lazy_table_loader_t avar;